Oil prices are up, but U.S. crude is still trading below $40 a barrel.

Treasury notes are falling, pushing up the yield on the 10-year benchmark not to 2.08 percent.

Best Buy was the biggest gainer in the S&P 500 index. The stock surged 16.4 percent after its fiscal second-quarter results handily beat analysts' estimates as shoppers picked up major appliances, large screen televisions and mobile phones